OpenCloudOS-Kernel/include/linux/gpio
Stephen Boyd 726cb3ba49 gpiolib: Support 'gpio-reserved-ranges' property
Some qcom platforms make some GPIOs or pins unavailable for use by
non-secure operating systems, and thus reading or writing the registers
for those pins will cause access control issues. Add support for a DT
property to describe the set of GPIOs that are available for use so that
higher level OSes are able to know what pins to avoid reading/writing.
Non-DT platforms can add support by directly updating the
chip->valid_mask.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-03-27 15:34:20 +02:00
..
consumer.h gpio: Export devm_gpiod_get_from_of_node() for consumers 2018-01-12 11:05:24 +01:00
driver.h gpiolib: Support 'gpio-reserved-ranges' property 2018-03-27 15:34:20 +02:00
gpio-reg.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
machine.h gpio: gpiolib: Generalise state persistence beyond sleep 2017-12-02 22:42:34 +01:00